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0403435刘艳
- MATLAB实现功率谱估计的程序.采用现代谱估计方法,最大熵谱法,Brug法和Levinson法-MATLAB power spectrum estimation procedures. The introduction of modern spectral estimation methods, maximum entropy spectrum, Brug law and Levinson Law
用Welch法进行功率谱估计
- 考虑L的三个不同值:L=256(3个数据段),L=128(7个数据段)和L=64(15个数据段)。各自的谱估计图如上图所示。可以明显的看到,加窗明显的减小了频谱上的假谱峰,但也更加进一步平滑了谱峰。所以,对于L=64的情况,在ω=0.8π的谱线可以很确定的辨认,但是那两个靠近的谱峰不容易区分。对于L=128的情况,这种情况提供了在分离和检测间最好的均衡。当然,对于在L=256时的情况,效果是更好的,能够从谱估计图上明显的分辨出三条谱线的
ARMODEL
- 功率谱估计的应用范围很广,在各学科和应用领域中受到了极大的重视。在《现代信号处理》课程中讲述了经典谱估计和现代谱估计这两大类谱估计方法;经典谱估计是基于傅立叶变换的,虽然具有运算效率高的优点,但是频谱分辨率低同时旁瓣泄漏严重,对长序列有着良好的估计。为了克服经典谱估计的缺点,人们开展了对现代谱估计方法的研究。现代谱估计是以随机过程的参数模型为基础的,有最大似然估计法、最大熵法、AR模型法、预测滤波器法。现代谱估计对短序列的估计精度高,同
pufengsousuo
- 这是我师兄做的空间谱估计的内容。这只是一小部分程序,希望大家能够接受,下载吧。-this done I saw the space Spectral Estimation content. This is only a small part of the procedure, hoping that everyone can accept, download it.
基阵信号处理
- 给定入射信号角度分别为 -22度 ,6度,18度时,不同信噪比情况下各种空间谱估计算法得到的曲线图-given incident signals point to -22 degrees, 6 degrees, 18 degrees, the signal to noise ratio under different space spectral estimation algorithm of the curve
traditionalsp
- 语音信号的频域处理,语音虽然是一个时变、非平稳的随机过程。但在短时间内可近似看作是平稳的。因此如果能从带噪语音的短时谱中估计出“纯净”语音的短时谱,即可达到语音增强的目的。由于噪声也是随机过程,因此这种估计只能建立在统计模型基础上。利用人耳感知对语音频谱分量的相位不敏感的特性,这类语音增强算法主要针对短时谱的幅度估计。 -voice signals in the frequency domain processing, voice
用sa进行光谱图像的特征提取的matlab程序
- 用sa进行光谱图像的特征提取的matlab程序,该算法比用其他方法在性能方面高%15-with spectral images of the Matlab feature extraction procedure, the algorithm than other methods in high-performance
spectrasubtractitera
- 语音处理中谱相减MATLAB程序,可以作为函数或单独的程序使用-voice processing spectral subtraction MATLAB procedures, or can function as a separate procedure using
pujian
- 谱减法算法,可以用来对有噪声的语音去噪,提高识别率。-spectral subtraction algorithm can be used to the noise of a voice denoising, and improve recognition rates.
col
- 一个什么都能做的语音处理软件,Manual segmentation of speech waveforms - creates label files which can be used to train speech recognition systems Waveform editing - cutting, copying or pasting speech segments Formant analysis - d
ppburg
- 作业Burg算法,用于数字信号处理中功率谱估计,简单实用。-operations Burg algorithm for digital signal processing power spectral estimation, simple and practical.
PCspectrum
- 在Matlab里可以方便计算一个序列频谱等特征的程序-in Matlab can easily calculate a spectral characteristics of the process
waveletspectrum
- 用于小波滤波器的谱分析,mallat分解法。实现信号的重构-for wavelet spectral analysis, Mallat decomposition. Signal Reconstruction
FIRFilterDesign
- FIR Filter Design(有限冲击响应滤波器设计),包括ideal bandpass filter impulse response、Modified Bessel function、Kaiser window parameters for spectral analysis等12种FIR设计matlab源代码-FIR (finite impulse response filter design), including the
pujianfa
- 经典的功率谱减法,程序复杂度低,运算速度快-classic power spectral subtraction, the complexity of the procedure is low and fast.
pujianfa_based_on_statistic
- 基于统计模型的谱减法,程序复杂度不高,优于传统谱减法.-statistical model based on the spectral subtraction, the complexity of the procedure is not high and superior to the traditional spectral subtraction.
sasptoolbox
- matlab谱分析工具箱,作谱分析的很有用的工具,是基于matlab7.0的-Matlab Toolbox spectral analysis, spectral analysis for the very useful tool, is based on the matlab7.0
spectral
- The Spectral Toolkit is a C++ spectral transform library written by Rodney James and Chuck Panaccione while at the National Center for Atmospheric Research between 2002 and 2005. The library contains a functional subset
spectral-0.2.tgz
- 谱聚类。 很好用的人工智能算法
Smoothness and Spectral Accuracy
- matlab code for Smoothness and Spectral Accuracy